Wingnut, Bat on the Belfry Making great use of the alliance keyword, this uncommon legendary creature gains either haste, flying, or menace whenever another creature enters play
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As such, we needed a blue ability that is weak enough that using it ten-plus times isn't a problem, but that means enough that you care that you've done it ten times
At the start of each players upkeep they have to pay one mana for each of their creatures, and if they cant, that creature is destroyed
While they arent always better than an Evolving Wilds, some decks will love them
It doesnt have the greatest ceiling, and one could argue its just another graveyard deck, but the floor is solid, with ample room for customization